Released on 2023-06-05.

Mock v4.1 new features:

• The /bin/dnf path can be either provided by DNF5 on newer systems (Fedora 39+), or by DNF4 on older systems. The detection of /bin/dnf though wasn’t ideal. Newly, if DNF4 is requested, Mock searches for the /bin/dnf-3 script instead. Also, when installing DNF4 into a bootstrap chroot, python3-dnf is installed instead of just dnf which might install DNF5.

• We newly allow installing the bootstrap chroot using /bin/dnf5 as fallback, if the requested package manager is not found on host (e.g. if package_manager=dnf is set for particular chroot, but only DNF5 is available on host, i.e. the future systems). Previous version of Mock would just fail verbosely.

• The mock.rpm runtime dependencies were changed and relaxed. We newly don’t strictly require any of the package managers. Having dnf5 or python3-dnf installed on host is just a Suggested thing, and it is newly up to the user to install one of them (on Fedora 39+, DNF5 will be more commonly the choice). Strictly speaking, with the --use-bootstrap-image feature, no package manager on host is needed at all.

• We use the same package manager search logic for bootstrap, non-bootstrap or bootstrap image use-cases.

Mock v4.1 bugfixes:

• The Mock v4.0 broken chroot configurations with custom SSL certificates and bootstrap (the certificates were not copied into the bootstrap chroot correctly). This problem has been fixed.

• The bind_mount plug-in newly pre-creates the destination directory in-chroot for bind-mounted files. See PR#1093 for more info.

• The –dnf-cmd option was fixed for the revamped package_manager detection logic. See PR#1087 for more info.